JAKARTA (AFP) - A 5.8-magnitude earthquake struck the Papua region in Indonesia's far east on Wednesday, US seismologists said, but there were no immediate reports of casualties or damage. The quake occurred on land at 8.42am (2342 GMT Tuesday, 742am Singapore time) with an epicentre 86km north of Tanahmerah, the US Geological Survey said. It revised the depth to nearly 9km. The Indonesian Meteorological and Geophysics Agency had measured the quake at 6.2 magnitude, and said there was no tsunami potential because of its epicentre on land. 'The tremor was felt in nearby Tanahmerah, Merauke and Wamena. We haven't received any reports of damage so far,' agency official Muhaimin told AFP.